I'm just talking about getting the FMG/AFG under the SBR category, and paying the $200 for that.
Since the AFG/FMG needs a Glock slide and barrel to function, it would be a SBR only. There are no transferable Glock 18's I believe, or if there are, there's only like one or two in all of the US. Perhaps a handful of the "magic switch" slide backplates were registered. Either way, if they even exist, they all cost six figures I'm sure.
They only had two years from Glock's market introduction to the MG freeze poison pill amendment in the '86 FOPA. So if you ever do see an FA Glock, it's a SOT sample I'm sure.
I do want to get a .22 suppressor, and get a stock and SBR my Draco AK pistol into a pseudo-Krinkov of sorts though.